Biological ETP in washing sector is rare, but S.F. washing Ltd has set an example to others.
FT Research Team
Denim is a fast growing industry in Bangladesh in terms of production volume, quality and development. Recently the concept ‘sustainability’ has emerged as an obligatory part for the industry and many giant buyers, including H&M, Zara etc., are driving the concept to be established in the industry. Many Bangladeshi denim factories are practicing sustainability as a buyer’s requirement, however, S.F. Washing Ltd., one of the renowned and leading washing factories, is practicing sustainability in a different way.
Figure 1: Ranges of denim products at S.F. Washing Ltd.
They are aware of a holistic approach to sustainability, have installed state of the art biological ETP plant and added cooling pad. They are using transparent sheets for sunlight, condenser recovery pump for saving energy and building awareness for the employees.
S.F. Washing Ltd. mostly produces kids and boys items where per kg fabric’s needed avg. 45-50 liter water. Currently, their washing capacity is around 55 thousand pieces per day. They are producing garments for many of the world’s renowned brands like C&A, H&M, Benetton, Mothercare, Tom Tailor, and ICS etc.
Shamim Bhuiyan, ED of SF Washing Ltd, said, “The company has installed highly efficient and cost-effective biological ETP plant considering the water and energy sustainability aspects compared to other methods because of least operation and maintenance cost due to very low chemical consumption, low labor cost, less sludge treatment, and disposal cost as well as eco-friendly.”
“Joseph EGLI has supplied this treatment plant and they continuously follow up the plant and all the processes. Its treatment capacity is 100m3 per hour,” he added.
Figure 2: Biological ETP of 100m3 per hour capacity at S.F. Washing Ltd.
Diponcor Chowdhury, Asst. General Manager of S.F. Washing Ltd said, “Earlier we had bio-chemical ETP plant for wastewater treatment but since 2017, we have set up a biological ETP plant aiming maximum treatment of wastewater. Also, the rainwater harvesting project is under construction.”
Biological ETP in washing sector is rare, but S.F. washing has set an example to others. In the dry process, they use 3D whisker machine, 3D wrinkle demy, destroy machine and so on, which generates high temperature. This hot environment is not work friendly for the workers and considering their comfort, the management has placed cooling pad in the entire dry process floor.
“Cooling pad creates a sustainable working environment for the workers and it always keeps the temperature in between 25-30 degree Celsius,” added Diponcor Chowdhury.
To avoid the effects of hazardous chemical on the environment, they follow the international chemical mixing guideline strictly. And wearing safety equipment’s is a must for the workers.
Figure 3: Transparent sheet installed on top of the production floor to save energy.
“Instead of fluorescent light, S.F washing installed LED light, which saves 3% electricity cost. Moreover, we are saving 20% light energy by installing a transparent sheet on top of our production floor. In addition, to reuse the heat energy, we are using condensing recovery pump, which is remarkable,” he continued.
As part of their sustainability practice, they arrange weekly meetings, in-house training to increase the awareness of the employees by using different innovative tools and means.